Caching mechanism cluster environment

Question

If we use a static hash map for caching process in a normal class (Not a singelton class) will it work in cluster environment?

Answer 1

Seems like you're writing the requirements for a framework like Terracotta : http://terracotta.org/documentation/product-documentation-1page

You're talking about JVM memory sharing

Answer 2

A static field's value is stored in the memory of the JVM, and each JVM will thus have its own static map. This can be OK, unless you want a unique cache for all the members of the cluster.